So, I’ve been reading up on how a TV works – specifically, the older style ones. I’ve learned that they have a gun that fires electrons at the screen which ‘lights up’ the pixels because they are made of special materials. The thing that amazes me is how the electron gun can fire the electrons with such precision. The pixels are so close together. Does the gun physically move or is it done with magnets or something and if it is done with magnets how do they control the current precisely enough to fire each electron at the exact right place?
In: Technology
It does not aim the beam with such accuracy.
There are three electron beams. The beams come from different positions.
In between the beams and the display there is a mask that limits where the beams can hit.
This video demonstrates the mask with flashlights acting the part of beams: [These Are Not Pixels: Revisited](https://youtu.be/Ea6tw-gulnQ?t=430) (The mask part is at 7:10 but you can watch rest of it too)
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